Disentangling the anisotropic radio sky: Fisher forecasts for 21 cm arrays
Zheng Zhang,
Philip Bull,
Katrine A Glasscock
Abstract:The existence of a radio synchrotron background (RSB) excess is implied by a number of measurements, including excess emission seen by the ARCADE 2 and LWA experiments. Highly sensitive wideband radio arrays, of the kind used to measure the cosmic 21cm signal, provide a promising way to further constrain the RSB excess through its anisotropy, providing additional insight into its origin. We present a framework for evaluating the potential of 21cm arrays to disentangle different components of the diffuse radio … Show more
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